Mechanical movement



(No Model.)

. E. REED.

MECHANICAL MOVEMENT.

Patented Jan. 26, 1886.

-BY ATTORNEYS.

hographer. Wash FREDERICK REED, OF SOLOMON CITY, KANSAS.

MECHANICAL MOVEMENT.

SPECIFICATION forming part of Letters Patent No. 334,806, dated January 26, 1886.

(N0 model.)

To all whom it may concern.-

Be it known that I, FREDERICK REED, of Solomon City, in the county of Dickinson and State of Kansas, have invented a new and 1111- proved Mechanical Movement, of which the following is a full, clear, and exact description.

My invention has for its object to provide a simple, inexpensive, and efficient mechanical movement, by means of which motion may be transmitted from one crank to another, or from a reciprocating bar to a rotating crank, or from a crank to a reciprocating bar, and so that dead-centers will be avoided.

The invention consists in particular constructions and combinations of parts of the mechanical movement, all as hereinafter fully described and claimed.

- Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in both the figures.

Figure 1 is a side elevation of my improved mechanical movement, and Fig. 2 is a detail plan View with the oval or elliptical cam in section.

The letter A indicates any suitable base or bed-frame, in which is journaled ashaft, B, to which is fixed a crank, O, whichin this instance is the prime mover.

To a wrist-pin, c, of crank O is pivoted one end of a bar, D, the other end of which is pivoted to the pin E, which carries the loose anti-friction round-headed roller F, which runs in the oval or elliptical cam-groove G, formed in the base A, or it may be in a block or plate attached to the base. This cam-groove G consists of two segmental grooves, g g, united at the ends at opposite points, g g, and the base of each half portion 9 of the groove rises gradually in the direction of movement of the roller F in the groove, so that the half-grooves g 9 have high parts g which terminate in abrupt shoulders at the points 9 g, and prevent backward movementof the roller Fwhen it reaches each extreme of movement, and thus compel the roller to travel always in one direction through the cam-groove.

On the pin E of roller F also is pivoted one end of a bar, H, to the opposite end of which is pivoted, at z, the lower end of a bar, I, the opposite end of which is pivoted to the wristpin j of a crank, J, fixed to a shaft, K, which is journaled in hangers L, said shaft K being the driven shaft, which may be geared by pulleys or belts-or directly by toothed wheelswith the machinery of any kind to be operated.

On the wrist-pin j of crank J also is pivoted one end of a bar, M, the other end of which is pivoted, at m, to a rock-bar, N, which is centrally pivoted, at n, to an upright or post, 0, and the other or lower end of bar N is pivoted, at a, to the bar H, and, as shown, nearly at the center of bar H.

The operation is as follows: We will suppose the parts to be in the positions indicated by the dotted lines in Fig. l, and the crank 0 turning in the direction of arrow 1, the barH moving in the direction of arrow 2, the crank J turning in direction of arrow 3, and the roller F having just passed from the high base portion of the cam-groove. If, now, the crank G be turned, the roller F will ride along the inner edge, 4, of the upper part, 9, 0f the camgroove, and in so doing will give a downward swing or impulse to the joint at z, between rods H I, and thus draw the crank J past its left-hand dead-center on a horizontal line as the rod N rocks on its pivot n, and as the roller runs down along the inclined edge 5 of the upper part, of the cam-groove the crankJ will be swung past its lower vertical center, and as the roller F passes from the high portion 9 of the upper cam-groove it will move along the lower portion, g, of the groove and over the inclined edges 6 7 of the cam-groove, to swing the rod I so the crank J will be carried past its outer horizontal and its upper vertical centers, and the roller F will come at the shoulder into the dotted position shown. The movements of the roller F in the elliptical cam-groove G, in connection with the pivoted bars H I M N, will imparta continuous rotary motion to the crank J, and dead-centers will be avoided.

It is evident that the bar D may be connectedv with a guided rod or bar, so that a reciprocating motion of said guided bar would transmit a rotary motion to the crank and shaft J K, or vice versa. A rotary motion of said crank and shaft would transmit a reciprocating motion from the bar D. Should the rockbar N be placed nearer the bar I, it would be 1 shorter than is shown, and longer if moved farther from bar I; but the proportions shown are satisfactory to insure good results.

The movement may be operated by any preferred motive power.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A mechanical movement comprising a bar, D, a roller or pin, F, an elliptical ,cam:

' groove, G, in which the roller runs, a bar, H,

pivoted to the bar D, pivoted bars I M, rockbar N, and a cranked shaft, J K, all constructed and combined for operation substantially as herein set forth.

forth.

2. A mechanical movement comprising a bar, D, a roller 0r pin, F, an elliptical camgroove, G, having opposite side parts, g g, in-

clined to form the high portions 9 g at oppositeends or parts of the groove, which has stop-shoulders g g, a bar, H, pivoted to bar D, pivoted bars I M, a rock-bar, N, and a cranked shaft, J K, all constructed and combined for operation substantially as herein set FREDERICK REED.

Witnesses:

M. SIAS, W. L. WIARD. 

